Hi, I'm new to this forum so forgive me if I am not doing something right. I have been researching for a few months and have decided to make a small homemade incubator for hatching eggs instead of spending big money on an incubator. I have most of the basic supplies besides a thermostat and a fan for the incubator. Any suggestions for what kind I should get (preferably under $15). Any tips for building? Thanks!